baber/WOPTO huggingface dataset:
Patent GB-474183-A (GB)
Title: Improvements in or relating to piezo-electric crystal apparatus
IPC: H03H9/09
Filed: 1936-11-30
Abstract: 474,183. Piezo - electric crystal mountings. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 30, 1936, Nos. 32834 and 32835. Convention dates, Nov. 30, 1935 and Dec. 31, 1935. [Class 40 (v)] A substance of high di electric constant and one or more conducting layers are interposed between a piezo-electric crystal am its electrodes. The flash over distance between the electrodes may be increas ed, in order to preven arcing and corona dis charge (with consequen deterioration of the crys tal and electrodes), to ensure rapid starting, and to enable higher voltage and amplitudes to be at tained so that the stresses may safely approach the elastic limit. The substances interposed between crystal and electrodes may be varnishes, vitreous enamels, lacquers, metallic oxides, fused resin coatings, glass, fused quartz, cellulose esters or ethers, rubber, mica, or the substances known under the Registered Trade Marks " Cellophane " and " Bakelite." They may be from 2 to 5 mils thick, and may be applied integrally with the electrodes or crystal, for instance by oxidizing the former or varnishing the latter. The dielectric may be painted, plated or sprayed with a conductive substance such as colloidal graphite, copper, nickel, silver, gold, platinum, or alloys of these metals. The conductor may cover one or both faces of the dielectric, and may cover its edges also, Figs. 1, 2, 3 (not shown). The crystal C, Fig. 4, may be clamped between the conductively coated dielectric plates K by risers r on the electrodes E. Corona discharge in the air-gaps a is prevented by the conductive coatings, but the plates K and coatings are too thin to damp the crystal. The risers r may be located on a nodal axis of the crystal, Fig. 6 (not shown), instead of at the corners. Alternatively sheets of metal foil SK, Fig. 7, not more than 1 mil thick, may be interposed between the crystal C and separate sheets M. Specification 460,087 is referred to. The Specification as open to inspection under Sect. 91 comprises also various arrangements in which the conducting layers are omitted. The electrodes E may be separated from the crystal C by plates of mica or other insulator, Figs. 1 .. 4 (Cancelled, not shown). The electrodes may press upon the central portions only of insulating sheets which are interposed between electrodes and crystal and which may enclose the latter, Figs. 5 .. 8 (Cancelled, not shown). The insulating-sheets may project beyond the edges of the electrodes and crystal so as to prevent sparking at the edges, Fig. 9 (Cancelled, not shown). The insulation may be turned over the edges of the electrodes and the crystal may rest on the lower electrode by gravity, Fig. 13 (Cancelled, not shown). Instead of corner risers r, risers abutting on the nodal axis of the crystal may be provided, and the insulating sheets may be cut away to fit these risers, Figs. 10, 11 (Cancelled, not shown). This subject-matter does not appear in the Specification as accepted.
Patent GB-1132128-A (GB)
Title: Improvements in or relating to electro-optical thread clearers
IPC: G01B11/14
Filed: 1966-07-21
Abstract: 1,132,128. Photo-electric thread inspection. HEBERLEIN & CO. A.G. July 21, 1966 [July 24, 1965], No. 32906/66. Heading G1A. In determining the thickness of a running thread, it is illuminated by a linearly extensive beam and viewed by one or more elongated photo-cells: both the beam and the photo-cells extending traverse to the direction of motion. In one arrangement Fig. 1 (not shown) a single elongated filament lamp and single detector are used but in another Fig. 2 (not shown) two of each are arranged round the thread. In Fig. 3 plastics light guides 4 arranged with their open ends in a curve direct light from a elongated filament lamp 3 - although a point source could be used - to a thread 2 viewed by an elongated photo-cell 1 which may be accompanied by a second photo-cell Fig. 4 (not shown).
Patent GB-1316856-A (GB)
Title: Valve for pressurised spray containers
IPC: B65D83/14
Filed: 1970-07-07
Abstract: 1316856 Valve for pressurized spray container SCOVILL MFG CO 7 July 1970 [18 July 1969] 32914/70 Heading F1R A valve for a pressurized spray container comprises a hollow stem 22, the lower end of which frictionally engages a cup-shaped valve member 14 which is urged upwards by a spring 18 so that rim 17 of annular wall 16 of the member sealingly engages a gasket 12, an annular channel 27 being defined between the stem and the rim 17, andpart 32 of the stem wall being of reduced thickness, Fig.3, to define a groove 28 extending from the channel 27 to the base of the stem, an aperture 31 being formed in the wall part 32. When operating button 20 is depressed, separating the rim 17 from the gasket, fluid may flow through the channel 27, the groove 28 and the aperture 31 into valve stem passage 26. The passage 26 may be of rectangular cross-section. It is stated that the valve is suitable for use with viscous fluids such as paints or varnishes.
Patent GB-211976-A (GB)
Title: Improvements in and relating to shock-absorbers and rebounddampers for motor road vehicles
IPC: F16F7/08
Filed: 1922-12-02
Abstract: 211,976. Smith, F. Dec. 2, 1922. Vibration-dampers. - A shock-absorber and rebound damper, or both, for motor vehicles is mounted upon one of the shackles or shackle pins of the vehicle springs and connected to the opposite shackle or shackle pin or to the chassis &c. Fig. 2 shows a friction device adapted to operate in one direction only and comprising a container 1 mounted on a shackle pin 5 and cooperating with a slipper 4 connected to the opposite shackle pin 12 by a ball-and-socket joint 10, 11. The container houses a tapered brake shoe 16 having a cork face or lining 17, a similar lining 18 being placed on the opposite side of the slipper 4. Spring regulating means are provided comprising a spring 19 and nut 22. In a two-way device, the container is formed to house two tapered shoes side by side, one being reversed to the other. In a modification, the brake shoes for the one-way and two-way devices are pivoted at 27, Fig. 4, and the pivoted brake shoes may be modified so as to have a loose taper cork or like lining block 17, Fig. 7, the spring regulating means 19 being also provided. In another modification, a drum 1, Fig. 13, is secured to the chassis, and the shackle pin, oscillated by the shackle pin 6, carries one or two brake shoes 16, 16<A> pivoted to the shackle pin and having brake linings. The shoes are provided with spring regulating devices 35. To ensure efficient lubrication. cups 26, Fig. 2, are provided communicating with longitudinal grooves 40, Fig. 17, in all the linings which grooves communicate with secondary inclined grooves 41.
Patent GB-1514185-A (GB)
Title: Metal casting process using a flux addition
IPC: B22D11/111
Filed: 1976-08-05
Abstract: 1514185 Flux for casting metal ROBSON REFRACTORIES Ltd 5 Aug 1976 [6 Aug 1975]  32930/75 Heading C7M [Also in Division B3] In casting molten metal, a flux comprising a mixture of MgO, CaO SiO 2 , MnO 2  and/or iron oxide, alkali metal carbonate alkali or alkaline earth fluoride and carbon is added during teeming. The flux preferably contains in weight per cent; 20-80 talc, 10-30 quicklime, 5-50 flourglass, 2-25 fluorspar, 2-25 Na 2  CO 3 , 0À05-10C, 0-25 MnO 2 , 0-20 iron oxide with a minimum of 1% MnO 2  or iron oxide; 5% Borax and 5% NaF may also be included.
Patent GB-916407-A (GB)
Title: Production of methyl chloroform
IPC: C07C19/05
Filed: 1961-09-14
Abstract: Methyl chloroform is produced by chlorinating ethylene and/or 1,2-dichloroethane with chlorine to form 1,1,2-trichloroethane and hydrogen chloride, dehydrochlorinating with aqueous alkali to form vinylidene chloride and reacting this with the hydrogen chloride produced in the first step to produce methyl chloroform.  The chlorination step is preferably carried out in a liquid reaction medium comprising 1,2-dichloroethane in the presence of a chlorination catalyst which may be a metal halide, e.g. ferric chloride.  The liquid may be continually vaporized, e.g. by boiling, which may be maintained by the exothermic reaction.  The gases evolved are cooled to condense organics and at least a portion returned to the reaction vessel.  The molar ratio of chlorine to ethylene may be 1.8 to 2.05 : 1, or more than 1 but less than 1.8 : 1, e.g. 1.2 to 1.5 : 1.  The former produces large quantities of 1,1,2-trichloroethane, while the latter produces 1,2-dichloroethane also.  The catalyst is present in at least 0.005% by weight.  The 1,1,2-trichloroethane is freed from 1,2-dichloroethane, e.g. by fractional distillation.  In the dehydrochlorination step, the alkali may be sodium hydroxide, potassium hydroxide or calcium hydroxide, and present in amounts of from 2-10 mole per cent excess, the reaction being carried out at 10-85 DEG C.  The final step may be carried out by reacting equimolar weights of hydrogen chloride and vinylidene chloride in an inert organic solvent, e.g. methyl chloroform, which may be vaporized, e.g. by boiling.  A chlorination catalyst may be present as before in a concentration of 0.01 to 1% by weight.  The reaction may be at 10-80 DEG C. at atmospheric pressure, or may be under subatmospheric pressure so that the temperature of the boiling liquid is below 60 DEG C.  The methyl chloroform produced may be vaporized and condensed by cooling, a portion being recycled to maintain a constant volume in the chlorination vessel.  It is purified by removal of hydrogen chloride, dried and stabilized.
Patent GB-1245243-A (GB)
Title: Moving target angle tracking system
Inventor: STONEY WILLIAM EDISON
IPC: G01S13/68
Filed: 1967-07-18
Abstract: 1,245,243. Moving pulse radar. NORTH AMERICAN AVIATION Inc. 18 July, 1967 [21 July, 1966], No. 33051/67. Heading H4D. In a monopulse, moving target, doppler tracking radar, bipolar video azimuth and elevation steering signals are clutter referenced and supply the steering phase detectors. The clutter reference is formed from an early received ground return which is stored and stretched. The intermediate frequency monopulse signals are gated at 14, 15 and 16 in cooperation with a range tracking unit, not shown. The video phase-sensitive difference channel detectors 17, 18 are phase referenced by the sum channel and automatic gain controlled. An early clutter sample is derived at gate 22 in response to an early-range gate control signal and is applied to the delay element, 23 through the transmit-receive circulator switch 24. The stored and stretched clutter signal in 23 is applied to the saturating amplifier 25 which supplies the constant amplified phase reference signal to the phase sensitive detectors 26, 27 and 28 which are followed by the box-car filters 29, 30, 31 to remove D.C. clutter. The delay element 23 has multiple reflecting surfaces and stretches the early clutter return without alteration of the spectral content.
Patent GB-1161595-A (GB)
Title: Coated Surfaces and the Production thereof
IPC: E04C2/04
Filed: 1965-09-20
Abstract: 1,161,595. Particle coated substrates. MATTHEWS REFRACTORIES Ltd., and C. MATTHEWS. 16 Sept., 1966 [20 Sept., 1965; 25 July, 1966], Nos. 40037/65 and 33288/66. Heading B6G. [Also in Division B2] A surface e.g. of metal, asbestic material, cementation material, wood, compressed paper or hardboard, glass, rigid or flexible plastics material or textile material has secured thereto by an adhesive matrix mineral or metallic particles, the particles projecting from the adhesive matrix and being graded in sizes and in proportions of size to provide an irregular substantially contiguous layer (as viewed without magnification) of contiguous particles obscuring the adhesive matrix from view. The coated surface may be produced by coating the surface with an adhesive matrix layer or layers e.g. of glass (preferably applied as an aqueous suspension of silicate particles) or natural or synthetic thermosetting or thermoplastic materials and depositing the particles by riddling through a mesh or from a spray gun optionally with the assistance of a baffle 10 of parallel tubes in tangential contact.
Patent GB-1081177-A (GB)
Title: Pile driving
Inventor: HATHWAY ARTHUR KENNETH
IPC: E02D7/18
Filed: 1965-08-04
Abstract: 1,081,177. Vibratory mechanisms. PYELING Ltd. July 29, 1966 [Aug. 4, 1965], No. 33324/65. Heading F2X. [Also in Division E1] Apparatus for driving a pile 8 into the ground comprises an electrically-operated reciprocatory motor 7 supported on top of the pile, a lowfrequency alternating or pulsating current supply for energizing the motor thereby to cause the pile 8 to vibrate and controls for adjusting both the amplitude and frequency of the current supply. The reciprocatory motor 7, is preferably of balanced construction and may be a moving coil motor or a moving iron motor.
Patent GB-334774-A (GB)
Title: Improvements in and connected with electro-therapeutic body belts
IPC: A61N1/24
Filed: 1929-11-02
Abstract: 334,774. Ballantyne, J. H. Nov. 2, 1929. Electric appliances. - An electro-therapeutic body belt comprises two sheets A, B of perforated white felt enclosing an insulating sheet I of wood pulp or fibre. Pieces of wire mesh, or metal plates, E, F, of dissimilar metals are placed between the layers of felt and the insulating material I on one side of the belt, and plates G, H similar to the plates E, F respectively are placed on the other side. The various layers are stitched together and provided with eyelets J for securing-tapes k. The belt may be enclosed in a linen cover.
Patent GB-1178758-A (GB)
Title: Developing Apparatus for Photo Sensitive Media
IPC: G03D13/00
Filed: 1967-07-20
Abstract: 1,178,758. Heat-developable processing apparatus. RICOH K. K. July 20, 1967 [July 27, 1966], No.33353/67. Heading G2A. Developing apparatus for heat developable photosensitive sheets comprises a belt 1 for feeding sheets 9 over a stationary heating table 4 and a plurality of rod-shaped heating elements 5 disposed adjacent the lower surface of the table and extending in a direction at right angles to the path of travel of the sheets, the heating elements being arranged so that the temperature of the table adjacent the inlet side 10a therof is at a lower temperature than that required for heat development and is such as to generate no steam from the sheets. The table may have a heat resistant sheet 6 thereon having a low coefficient of friction e.g. a glass fibre sheet treated with a heat resistant plastic. The heating elements may be of equal heat output with the distance between adjacent elements progressively decreasing from the inlet side, as shown, or, alternatively, they may be equally spaced with progressively increasing heat outputs from the inlet side. The belt preferably has an uneven surface to allow steam to escape.
Patent GB-397730-A (GB)
Title: Improvements in water connections for rock drills
IPC: E21B21/01
Filed: 1932-11-25
Abstract: 397,730. Percussive drills. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Ingersoll-Rand Co.; 15, Exchange Place, Jersey City, New Jersey, U.S.A.) Nov. 25, 1932, No. 33456. [Class 124.] The water supply to a rock drill is led into the tool through a connection which is freely revoluble about the tool axis. The tool head carries a hollow nut 36, the bore of which is closed by a plug 44. This plug is held in the nut by a ring 66 and carries the water tube 24, the end of which is surrounded by packing 72.
Patent GB-189359-A (GB)
Title: Pressed tubes for tire valves
IPC: F16K15/20
Filed: 1921-12-13
Abstract: 189,359. Chambers, T. P. Dec. 13, 1921. Valves. -. Tyre-valve bodies are made by .extrusion from tubular blanks, such as shown in Fig. 4. A die block 10, Fig. 1, has secured to it a thrust-plate 11 on which rests a bushing 12 surrounding the die 13. The punch has a projecting pin 15 of the diameter of the valve bore. The die block is recessed as shown to reduce friction.
Patent GB-959931-A (GB)
Title: Improvements relating to guidance systems for electrically propelled vehicles
IPC: A63H18/12
Filed: 1959-10-06
Abstract: 959,931. Steering vehicles; controlling electric locomotives. L. MAIDMENT. Oct. 6, 1960 [Oct. 6, 1959], No. 33752/59. Headings B7H and B7L. [Also in Division G3] An electrically-propelled vehicle, which may be a toy or a vehicle transporting goods during a manufacturing process, collects current from the surface over which it travels, which surface has patterned areas of different polarity related to the collecting means on the vehicle whereby the vehicle is caused to follow a predetermined path. The vehicle, Figs. 1A and 1B, may have three wheels, all of which are current collectors and two driving motors D and E, driving the rear wheels A and B through gearing. The current collector wheel A is connected to the motor E and to the single front wheel current collector C and the current collector wheel B is connected to the motor D and to the front wheel C. The vehicle travels over a surface having a conductive area F of (say) positive polarity and an area G of (say) negative polarity, these two areas being separated by a strip I of zero polarity. The wheels A and B collect from the areas F and G and the wheel C travels along the neutral strip I, the vehicle thereby moving along a straight path. If it should deviate, the wheel C will enter an area of positive or negative polarity whereby the wheel A or B on that side will be shorted out and the vehicle, driven by the motor on the other side, will be guided back to the former path. To prevent hunting, the wheel C may be a wound resistor bridging the gap between the conducting surfaces whereby the potential difference across the motors is proportional to the deviation of the wheel C from the centreline whereby steering is effected. The vehicle may have one motor for steering and one for propulsion controlled conjointly by the current collectors. A control route, Fig. 2, is described, having areas F and G of positive and negative polarity, respectively, separated by non-conducting strips, and areas A, B, C, D; A 2 , B 2 , C 2 , D 2  and A 3  and C 3  which may be given either positive or negative polarity by switches 1a, 1b 1c, 1d; 2a, 2b, 2c, 2d and 3a and 3b and areas N and P of permanently negative polarity. The part N is controllable as a roundabout, P as cross roads, and the area A 3 , which meets the area G at inclined surfaces, is an overtaking area. Traffic signals are connected across the route intersection points and an indicator lamp R is associated with the overtaking area A 3 .
Patent GB-1140433-A (GB)
Title: Improvements in or relating to feed mechanisms
Inventor: HATFIELD HORACE DAVID
IPC: B23Q5/34
Filed: 1966-07-27
Abstract: 1,140,433. Feed mchanisms. BRYANT SYMONS & CO. Ltd. 6 July, 1967 [27 July, 1966], No. 33808/66. Headings B3B and B3T. A feed mechanism for use in a machine tool comprises a feed member 1 (e.g. a slide), actuated by piston and cylinder power means 2, a constant speed motion-source 9 (e.g. a synchronous motor), connected to the feed member through a unidirectional motiontransmitting device 14 (e.g. a free-wheel) whereby the drive to the feed member by the power means 2 in one direction is restricted to the feed rate determined by the constant speed means but is not restricted in the opposite direction. The connection between the feed member and the constant speed source is effected by a rack and pinion 8, 17 through a worm and wheel 10, 13, the worm and wheel preventing the force of the power means 2 being transmitted back to the constant motion source.
Patent GB-994483-A (GB)
Title: 3-methoxy-4-alkoxy-anils
Inventor: GORVIN JOHN HENRY
Filed: 1961-09-21
Abstract: The invention comprises compounds of the formula <FORM:0994483/C2/1> where A is a hexyl, heptyl or octyl radical and R is a dialkylaminophenyl group.  The compounds may be prepared either by reacting an appropriate aldehyde with an appropriate basic ether or by reacting an appropriate aldehyde with a basic methoxyphenol and reacting the anil with a halide or reactive ester of the radical A. Pharmaceutical compositions having anthelminthic activity comprise the compounds of the invention in the form of tablets, capsules, cachets, ampoules, suppositories, powders, granules, solution suspensions, emulsions or ointments. For parenteral use the formulations are sterile and presented in sealed containers. Specification 852,083 is referred to.
Patent GB-1059314-A (GB)
Title: Process for preparing propylene sulfide and intermediate products for use therein
IPC: C07D331/02
Filed: 1963-08-27
Abstract: The invention comprises propylene monothiocarbonate having the characteristics of a faintly yellow liquid of refractive index <FORM:1059314/C2/1> having a boiling-point of 42 DEG  to 43 DEG  C. at 0.1 mm. mercury pressure and containing 27-29% by weight of sulphur and a method of preparing propylene monothiocarbonate comprising heating to a temperature of up to 90 DEG  C. a mixture of propylene oxide and carbonyl sulphide in the presence of a basic compound as catalyst which catalyst has a basicity at least substantially as great as the basicity of sodium methoxide. Propylene sulphide may be prepared by heating propylene monothiocarbonate to 140 DEG  to 210 DEG  C. optionally the presence of a basic compound as catalyst.
Patent GB-1211338-A (GB)
Title: Improvements in and relating to bundling straps
Inventor: MARIANI REMO
IPC: B65D63/10
Filed: 1969-07-04
Abstract: 1,211,338. Fastenings. THOMAS & BETTS CORP. 4 July, 1969 [9 Aug., 1968], No. 33907/69. Heading E2B. The aperture 34 in the head 28 of a bundling strap has a projecting key 36 engaging a longitudinal groove 18 in the body of the strap and a spring steel barb for holding the strap once it has been pulled through by its tail portion 22. The head has a strengthening base 42. Attempted withdrawal of the strap pulls the barb down against the key so that this is deflected against the strap to grip it. Slight modifications are described.
Patent GB-393324-A (GB)
Title: Improvements in or relating to travelling cranes and other movable members provided with runways
IPC: B66C7/14
Filed: 1931-12-08
Abstract: 393,324. Travelling cranes &c. HOUGHTON, E. C., 96, Herne Hill, London. Dec. 8, 1931, No. 34017. [Class 104 (ii).] In a travelling crane &c. of the kind having a runway for a trolley which, when the crane &c. runway is aligned with a similar fixed or movable runway, can pass from one to the other, a locking device for locking the runways in alignment is connected with means for preventing a trolley from leaving one or other runway or each runway except when the runways are aligned. In one form, the movable runway A carries a bracket A<1> having sloping sides and a central slot A<2> which is normally closed by one end of a lever a<2> mounted on a shaft a on a bracket A3. The shaft a carries also locking levers a<3> which engage stop levers a<4> pivoted on a shaft a<1> and prevent a trolley from leaving the runway. The runway B carries a bracket B<1> supporting a shaft b on which are mounted a latch B<2> for engaging the slot A<2> and locking levers b<1> for locking trolley stop levers b<2>. When the two runways approach each other, the latch B<2> travels up the sloping side of the bracket A<1> and drops into the slot A<2>, depressing the lever a2 and disengaging the levers a<3> from the stops a<4>, so that a trolley can pass from one runway to the other. At the same time the movement of the latch B<2> disengages the levers b<1> from the stops b2. If it is desired to pass the runway B without stopping, the end a<2x> of the lever a<2> is fixed by a plunger C under the control of the driver, and the latch B travels over the top of the lever a<2> without entering the slot A<2>. In the form shown in Figs. 4 and 5, a spring plunger B<6> enters a slot A<2> in the bracket A<1>, displacing a lever a<3> which carries locking pawls for the trolley stops a<1>. At the same time the locking levers b<1> are disengaged from the stops b<2>. In another form, the lever a<2> and latch B2 are controlled by electromagnets.